Question

Lab 5 Areas.cpp Marisol Castellanos villa #include # include using nanespace std; int main // ?NCLUDE ANY NEEDED FILES HERE ciostrean cmath.ho const double PI 3.14159 DEFINE THE NAMED CONSTANT PI HERE AND SET ITS VALUE TO 3.14159 oat c radius, c area; loat s side, s area float t-height, tvidth, tarea; int choice: char ch; de // DECLARE ALL NEEDED VARIABLES HERE. GIVE EACH ONE A DESCRIPT?VE /I NAME AND AN APPROPRIATE DATA TYPE coutec"Progran to calculate areas of objects scendl; coutsc "1 coutss "2 square" ecendl; circle <xendl WRITE STATEMENTS HERE TO DISPLAY THE 4 MENU CHOICES coutee "4..quit ecendt: coutee Enter the option to perfors the action: cin » choice; if (choicem1) WRITE A STATEMENT HERE TO INPUT THE USER'S MENU CHOICE // USE AN IF/ELSE IF STATEMENT TO OBTA?N ANY NEEDED INPUT ?NFORMATION coutsc"\nEnter the Length of the side of the square: cimo s side; s areaus side side; coutec "Area"ees areakcendl: s else if (choices2) coutec"\nRadius of the circle: cin-c radius c area PI'c radius c radius; coutee Area eec areaccendl: else if (choices3) coutsc"\nEnter the height of the right triangle: cino t height: coutee'Enter the width of the right triangle:: cinos t width t area.5 t height t width; cout<c"Area "<ct areaccendl; else if (choicess4) exit(0) before entering 4 to quit.

Answer 1

#include <iostream>
#include <math.h>
using namespace std;

//prototypes
void display();
void findSquareArea();
void findCircleArea();
void findTriangleArea();
const double PI = 3.14159;
int main() {
int choice;

do
{
display();
cout<<"Enter the option to perform the action";
cin>>choice;
if(choice == 1)
{
findSquareArea();
}
else if(choice == 2)
{
findCircleArea();
}
else if(choice == 3)
{
findTriangleArea();
}

else if(choice == 4)
exit(0);
}while(choice != 4);
return 0;
}
//function definitions
void display()
{
cout<<"program to calculate area of objects "<<endl;
cout<<"1.........Square"<<endl;
cout<<"2.........Circle"<<endl;
cout<<"3.........Right Triangle"<<endl;
cout<<"4.........Quit"<<endl;
}
void findSquareArea()
{
  float s_side,s_area;
  cout<<"\nEnter the length of the side of the square : ";
  cin>>s_side;
  s_area = s_side*s_side;
  cout<<"\nArea = "<<s_area<<endl;
}
void findCircleArea()
{
float c_radius,c_area;
cout<<"\nEnter the radius of the circle : ";
  cin>>c_radius;
  c_area = PI*c_radius*c_radius;
  cout<<"\nArea = "<<c_area<<endl;
}
void findTriangleArea()
{
  float t_height,t_width,t_area;
  cout<<"\nEnter the height of the right triangle : ";
  cin>>t_height;
  cout<<"\nEnter the width of the right triangle : ";
  cin>>t_width;
  t_area = 0.5 * t_height * t_width;
  cout<<"\nArea = "<<t_area<<endl;
}

Output:

program to calculate area of objects
1.........Square
2.........Circle
3.........Right Triangle
4.........Quit
Enter the option to perform the action 1
Enter the length of the side of the square :3.4
Area = 11.56
program to calculate area of objects
1.........Square
2.........Circle
3.........Right Triangle
4.........Quit
Enter the option to perform the action 2
Enter the radius of the circle :4.1
Area = 52.8101
program to calculate area of objects
1.........Square
2.........Circle
3.........Right Triangle
4.........Quit
Enter the option to perform the action 3
Enter the height of the right triangle :5.6
Enter the width of the right triangle :2.9
Area = 8.12
program to calculate area of objects
1.........Square
2.........Circle
3.........Right Triangle
4.........Quit
Enter the option to perform the action 4

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